Manufacture of burton salts.



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ROBERT WAI-IL, OF CHICAGO, ILLINOIS.

MANUFACTURE 0F BURTON SALTS.

Specification" of Letters Patent.

Patented Get. 12, 1915.

No Drawing. Application filed .Tune 13, 1914, Serial No. 844,893. Renewed April 12, 1915. Serial No. 20,943.

To all whom it may concern:

Be it known that I, ROBERT WAHL, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a new and useful Improvement in the Manufacture of Burton Salts, of which the following is a specification.

My invention relates to an improvement in the manufacture of Burton salts, which are used extensively in England for burtonizing or ,correcting brewing waters used in mashing the malt or other materials-to produce the same quality of finished product of ale or beer as that obtained by the use of natural water used for brewing and supplied from the Wells in Burton-on-Trent. The Burton well Water is characterized by its content of mineral substances, of which calcium sulfateis the principal ingredient, then sodium chlorid and small quantities of magnesium sulfate. Small quantities of calcium and magnesium carbonates also occur in this natural water, but serve no useful purpose in its use as brewing water.

Burton salts is a staple article of commerce in England for mixture with the brewing water more usually in the manufacture of pale ales. These salts consist of a mixture of calcium sulfate, magnesium sulfate and sodium chlorid, in various proportions according to individual requirement; In this country Burton salts are also employed to advantage, particularly in brewing ales and pale beers, when the brewing Water contains too little of the desirable mineral substances mentioned; and the salts are prepared by mixing precipitated dry calcium sulfate with sodium chlorid and magnesium sulfate.

The primary objects of my invention are to greatly simplify the manufacture of Burton salts and to augment the solubility of the product.

To practise my improved process, I mix, in equal or approximately equal proportions, commercial calcium chlorid (CaCl,6H,O) with commercial sodium sulfate, or Glauber salts (Na SO 10H O) in a molten condition.

The Glauber salts melts at a temperature of this country that are deficient in the aforesaid desirable mineral ingredients. By mixing together the pulverized calcium chlorid and molten sodium sulfate, the following chemical reaction takes place:

The product may be put up in packages, and is available for use, immediately after being thus prepared. Its physical condition is that of a semi-solid or paste, from which a small quantity of liquor, holding in solution some of the mineral ingredients particularly sodium chlorid, separates and may, if desired, be drained oil to obtain the product in a more solid condition; or it may be pressed-out, as by using'a hydraulic or other suitable press, since the liquor readily separates from the precipitated solid calcium sulfate.

The moist condition inwhich my improved process enables the product to be furnished to the user, enhances its solubilityand the uniformity of its action in-all cases. What I claim as new and desire to secure by Letters Patent is 1. The process of manufacturing salts for burtonizing brewing waters and containing as principal ingredients precipitated calcium sulfate and sodium chlorid, which consists in mixing calcium chlorid with Glauber salts in a molten condition.

2. The process of manufacturing salts for burtonizing brewing waters and containing as principal ingredients precipitated calcium sulfate and sodium chlorid, which consists in heating and thereby melting Glauber salts, mixing calcium chlorid with the dition, sodium 'chlorid and magnesium liquefied '{Jrlauber saljrs, and sgparating the sulfate. resu tant iquor out o the pro uct,

3. As a new article of manufacture, salts ROBERT WAHL 5 for burtonizing brewing waters, consisting In presence ofof a paste-like product containing calcium JOHN V. NALIKOWSKY, sulfate in a wholly and readily soluble con- WALTER GRIEFENOW. 

